usps 1-2 day delivery

usps 1-2 day delivery is available through services like Priority Mail and Priority Mail Express. While not guaranteed for regular Priority Mail, most packages within a regional zone can arrive in 1–2 business days. Delivery speed depends on origin and destination ZIP codes. USPS provides tracking and some insurance with both services. E-commerce sellers prefer these options for quick, affordable delivery with nationwide coverage. Using flat-rate boxes can help manage shipping costs while benefiting from fast delivery times.